package me.guizhi.work.web;

import me.guizhi.work.domain.User;

import javax.servlet.*;
import javax.servlet.annotation.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

@WebFilter(filterName = "CheckFilter")
public class CheckFilter implements Filter {
    public void init(FilterConfig config) throws ServletException {
    }

    public void destroy() {
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws ServletException, IOException {
        HttpServletRequest httprequest = (HttpServletRequest) request;
        HttpServletResponse httpresponse = (HttpServletResponse) response;
        httprequest.setCharacterEncoding("UTF-8");
        httpresponse.setContentType("text/html;charset=utf-8");

        HttpSession session = httprequest.getSession();

        User user = (User)session.getAttribute("user");
        if (null != user) {
            chain.doFilter(httprequest, httpresponse);
        } else {
            httpresponse.getWriter().println("请先<a href='login.html'>登陆</a>");
        }

    }
}
